"""Tests for src/pygui/backend/sensor_editor.py."""
from pygui.backend.models.sensor_editor import SensorEditor


def test_replace_overrides_raw_value():
    ed = SensorEditor()
    ed.set_replacement(2, 150.0)     # index 2 forced to 150.0 regardless of raw
    assert ed.apply([149.0, 149.0, 99.0]) == [149.0, 149.0, 150.0]


def test_offset_shifts_raw_value():
    ed = SensorEditor()
    ed.set_offset(0, +0.5)
    assert ed.apply([149.0, 149.0]) == [149.5, 149.0]


def test_replace_and_offset_apply_in_order():
    """Replacement wins over raw, then offset is added on top."""
    ed = SensorEditor()
    ed.set_replacement(2, 150.0)
    ed.set_offset(2, +1.0)           # sensor 2: replace 99→150, then +1 → 151
    ed.set_offset(0, +0.5)
    out = ed.apply([149.0, 149.0, 99.0, 149.0])
    assert out == [149.5, 149.0, 151.0, 149.0]


def test_clear_single_index_restores_only_that_sensor():
    ed = SensorEditor()
    ed.set_replacement(0, 0.0)
    ed.set_replacement(1, 0.0)
    ed.clear(0)                       # clear only index 0
    assert ed.apply([149.0, 149.0]) == [149.0, 0.0]


def test_clear_restores_all():
    ed = SensorEditor()
    ed.set_offset(0, 5.0)
    ed.set_replacement(1, 200.0)
    ed.clear()
    assert ed.apply([149.0, 149.0]) == [149.0, 149.0]


def test_no_overrides_returns_copy():
    ed = SensorEditor()
    original = [149.0, 149.0]
    result = ed.apply(original)
    assert result == original
    assert result is not original